how to use external library within a fragment?

Question

请帮助如何在片段内使用外部库（图像滑块库），当扩展到 Fragment 时，findviewbyid 中出现错误，当扩展到 FragmentActivity 时，FragmentManager 不支持它。

Answer 1

did you add this?

dependencies {
        compile "com.android.support:support-v4:+"
        compile 'com.squareup.picasso:picasso:2.3.2'
        compile 'com.nineoldandroids:library:2.4.0'
        compile 'com.daimajia.slider:library:1.1.5@aar'
}

to the gradle?

Also, check if Fragment is imported from support library.